Study of the horizontal sidetracking efficiency using hydrodynamic modeling (on the example of a Kazakhstani field)

K. Soltanbekova; B. Assilbekov; A. Zolotukhin

doi:10.31643/2022/6445.05

Authors

K. Soltanbekova Satbayev University
B. Assilbekov Satbayev University
A. Zolotukhin National University of Oil and Gas “Gubkin University”

DOI:

https://doi.org/10.31643/2022/6445.05

Keywords:

horizontal sidetrack, hydrodynamic modeling, flow rate, friction pressure loss, Net present value – NPV.

Abstract

One of the modern approaches for the effective development of small deposits is the construction and operation of wells with a complex architecture: horizontal wells (HW), sidetracks (BS, BGS), multilateral wells (MLW). Sidetracking makes it possible to reanimate an old well that is in an emergency state or inactivity for technological reasons, by opening layers that have not been previously developed, bypassing contamination zones, or watering the formation. This study examines the possibility of using horizontal sidetracks in the operating wells of the field of the Zhetybai group. To select the optimal length of the horizontal sidetrack of the wells, graphs of the dependences of the change in flow rate versus length of the horizontal well were built, taking into account the pressure losses due to friction. It can be seen from the dependence of NPV versus length of the horizontal wellbore that the maximum NPV is achieved with a horizontal wellbore length of 100 m. A further increase in the length of the horizontal wellbore leads to a decrease in NPV. This is due, firstly, to a decrease in oil prices, and secondly, interference of wells, a small number of residual reserves, and a small oil-bearing area. As a result of a comparison of technical and economic criteria, the optimal length of a horizontal wellbore is from 100-300 meters. Comparison of the flow rates of vertical wells and wells with horizontal sidetracks showed a clear advantage over the latter in all respects.

Downloads

Download data is not yet available.

Author Biographies

K. Soltanbekova , Satbayev University

Head of the “Subterranean Hydrodynamics” Section, Research & Production Laboratory "Modeling in Energy"

B. Assilbekov, Satbayev University

PhD, Head of the Research Laboratory “Computational Modeling and Information Technology”

A. Zolotukhin, National University of Oil and Gas “Gubkin University”

Doctor of Technical Sciences, Professor of the Department of Development and Operation of Oil Fields

References

Borisov YuP, Pilatovskiy VP, Tabakov VP. Razrabotka neftyanykh i gazovykh mestorozhdeniy gorizontalnymi i mnogozaboynymi skvazhinami[Development of oil and gas fields by horizontal and multilateral wells].Moscow: Nedra. 1964, 154. (In Rus.).

Khrulenko A, ZolotukhinAB. Approach for full field scale smart well modeling and optimization.In:Society of Petroleum Engineers -Arctic and Extreme Environments Conference and Exhibition,2011Oct 18–20;Moskow, Russia. 824-851. https://doi.org/10.2118/149926-ms

Kuramshin RM. Pervyye rezultaty primeneniya tekhnologii zarezki vtorogo stvola na Ermakovskom mestorozhdenii[The first results of the application of the sidetracking technology at the Ermakovskoye field]. VNIIOENG.Neftepromyslovoye delo. 2000;7:17-19. (In Rus.).

Medvedev NYa,Malyshev AG,Sonich VP. Analiz primeneniya bokovykh stvolov na mestorozhdeniyakh OAO “Surgutneftegaz”[Analysis of the application of sidetracks at the fields of OJSC "Surgutneftegas"].Neftyanoye khozyaystvo=Oil Industry. 2001;9:58-62.(In Rus.).

Oganov AS, Povalikhin AS, Belyayev VM, Akhmetov AA, Moskvichev VN. Provodka dopolnitelnogo gorizontalnogo stvola iz ekspluatatsionnoy kolonny bezdeystvuyushchey skvazhiny[Additional horizontal wellbore drilling from the production string of an idle well].Neftyanoye khozyaystvo.=Oil Industry.1993;9:6-7.(In Rus.).

Zakirov IS, Vladimirov IV. Sootnosheniye chisla gorizontalnykh i vertikalnykh skvazhin pri opredelenii plotnosti setki skvazhin[The ratio of the number of horizontal and vertical wells when determining the density of the grid of wells].Neftyanoye khozyaystvo=Oil Industry. 2008;8:66-67.(In Rus.).

Pomazov AN, Bragin AE. The first results of drilling horizontal sidetrack wells on the tyumen suite of the krasnoleninskoye field.Neftyanoe Khozyaystvo.-Oil Industry.2020;3:64-67. https://doi.org/10.24887/0028-2448-2020-3-64-67

Al-Majed ASohA, Al-Mutairi Y, Abdelgayoum A, Al Sahli B. Data driven optimization of sidetrack operation planning and execution. International Petroleum Technology Conference 2020 -IPTC 2020. 2020. https://doi.org/10.2523/iptc-20286-ms

Alenezi B, Diaz N, Qaddoura D, Odiase P, Hughes B, Al-Mutairi A....Chawla D. Methodology for planning and xecution of multilateral well design together with enhanced geo-navigation techniques for optimum well placement in complex geological environment. Society of Petroleum Engineers -Abu Dhabi International Petroleum Exhibition and Conference 2020 -ADIP 2020. 2020. ISBN: 978-161399734-5.

Shumilov AV. The study of fluid inflow in horizontal sidetracked well by probabilistic and statistical methods. Neftyanoe Khozyaystvo=Oil Industry. 2019;12:136-139. https://doi.org/10.24887/0028-2448-2019-12-136-139

Shcherbakov AA. Development of methods for assessing the oil productivity index of sidetrack wells (on the example of the Bobrikovskian deposit of Unvinskoye field).Neftyanoe Khozyaystvo=Oil Industry. 2019:5:82–84. https://doi.org/10.24887/0028-2448-2019-5-82-84

Semenov AA, Ishmuratov IF. Applied Uncertainty Analysis to Mitigate Subsurface Risks at Planning and Implementation Stages of the UV1 Sidetrack Drilling Campaign for One of the Fields in Western Siberia.SPE Russian Petroleum Technology Conference. Moscow. Russia. 2015. https://doi.org/10.2118/176620-MS

Moldabayeva GZh, Suleymenova RT, Agzamov AKh, Abileva SZh, Baluanov BA, Karimova AS. Effektivnost primeneniya fizicheskogo vozdeystviya na produktivnyy plast dlya snizheniya vyazkosti i uvelicheniya nefteotdachi plastovThe effectiveness of the use of physical impact on the reservoir to reducethe viscosity and increase oil recovery].Kompleksnoye Ispolzovaniye Mineralnogo Syria=Complex Use of Mineral Resources.2021;316(1):53-61. (in Rus.). https://doi.org/10.31643/2021/6445.07

Turegeldieva KA, Zhapbasbayev UK, Assilbekov BK, Zolotukhin AB. Matrix Acidizing Modeling of Near-wellbore with Reduced Reservoir Properties (part 1).Neftyanoe Khozyaystvo=Oil Industry. 2016;1:50–54.

Bulygin DV, Ganiyev RR. Kompleksnyy podkhod k otsenke effektivnosti i podboru uchastkov dlya bureniya bokovykh gorizontalnykh stvolov[An integrated approach to assessing the effectiveness and selection of sites for drilling horizontal sidetracks].Materials of the international scientific-practical conference Innovative technologies in geology and development of hydrocarbons.Kazan: NPO Reper. 2009. 51-56.(in Rus.).

Polubarinova-Kochina PYa. O naklonnykh i gorizontalnykh skvazhinakh konechnoy dliny[For deviated and horizontal wells of finite length].Applied Mathematics and Mechanics of the USSR Academy of Sciences. t. 20. 1956.86-94.(in Rus.).

Joshi SD. Horizontal well technology.PennWell Books. 1991. 552. ISBN-13: 978-0878143504; ISBN-10: 0878143505.

Tytyanok VN, Dramnov RT. Efficiency of development of oil deposits with hard-to-recover reserves by drilling sidetracks.Neftyanoye khozyaystvo=Oil Industry.2001;12:40-43.(in Rus.).